Extracting Web Data Using Instance
... learning, a set of labeled instances (more than 1) is stored first (no induction learning is performed). When a new instance is presented, it is compared with the stored instances to produce the results. The approach is commonly used in classification. The most popular instance-based learning method ...
... learning, a set of labeled instances (more than 1) is stored first (no induction learning is performed). When a new instance is presented, it is compared with the stored instances to produce the results. The approach is commonly used in classification. The most popular instance-based learning method ...
The role of artificial intelligence in the integration of remotely sensed
... should be extended to include remotely sensed imagery, and that such imagery can become a focus for user interaction, spatial database update, and emerging image interpretation and analysis capabilities. Secondarily, sub-areas of AI such as knowledge representation and utilization, knowledge acquisi ...
... should be extended to include remotely sensed imagery, and that such imagery can become a focus for user interaction, spatial database update, and emerging image interpretation and analysis capabilities. Secondarily, sub-areas of AI such as knowledge representation and utilization, knowledge acquisi ...
Regularization and variable selection via the elastic net
... the L1 -norm of the coefficients is smaller than a certain value. (b) If there is a group of variables among which the pairwise correlations are very high, then the lasso tends to select only one variable from the group and does not care which one is selected. See Section 2.3. (c) For usual n > p si ...
... the L1 -norm of the coefficients is smaller than a certain value. (b) If there is a group of variables among which the pairwise correlations are very high, then the lasso tends to select only one variable from the group and does not care which one is selected. See Section 2.3. (c) For usual n > p si ...
Nonparametric Curve Extraction Based on Ant Colony System Qing Tan Qing He
... pavement crack detection, river course detection in remote sensing images and other crack detection, curve equations are usually not known a priori before recognition. HT methods do not work in these situations. Extracting curves from a binary image means to select a subset of pixels (real target pi ...
... pavement crack detection, river course detection in remote sensing images and other crack detection, curve equations are usually not known a priori before recognition. HT methods do not work in these situations. Extracting curves from a binary image means to select a subset of pixels (real target pi ...
Classification and regression
... The nearest neighbors are defined in terms of Euclidean distance (need to normalize attributes) d ( X ,Y ) = ...
... The nearest neighbors are defined in terms of Euclidean distance (need to normalize attributes) d ( X ,Y ) = ...
Solving Large Markov Decision Processes (depth paper)
... or function) schemata and action schemata defined over object classes instead of using explicit states and actions. This representation not only makes it possible to describe large state-space problems, but is also capable of specifying similar decision-making problems (related MDPs) by using one si ...
... or function) schemata and action schemata defined over object classes instead of using explicit states and actions. This representation not only makes it possible to describe large state-space problems, but is also capable of specifying similar decision-making problems (related MDPs) by using one si ...
Notes 11
... Log Transformation of Both X and Y variables • It is sometimes useful to transform both the X and Y variables. • A particularly common transformation is to transform X to log(X) and Y to log(Y) E (log Y | X ) 0 1 log X E (Y | X ) exp( 0 1 log X ) ...
... Log Transformation of Both X and Y variables • It is sometimes useful to transform both the X and Y variables. • A particularly common transformation is to transform X to log(X) and Y to log(Y) E (log Y | X ) 0 1 log X E (Y | X ) exp( 0 1 log X ) ...
ppt - LaDiSpe - Politecnico di Torino
... representations of the world (which may be simulated or real), but rather reacts directly to its environment as seen through its sensors An alternative to having a situated robot would be one which builds up a representation of its world and then makes plans based on this representation Because ...
... representations of the world (which may be simulated or real), but rather reacts directly to its environment as seen through its sensors An alternative to having a situated robot would be one which builds up a representation of its world and then makes plans based on this representation Because ...
Time series
A time series is a sequence of data points, typically consisting of successive measurements made over a time interval. Examples of time series are ocean tides, counts of sunspots, and the daily closing value of the Dow Jones Industrial Average. Time series are very frequently plotted via line charts. Time series are used in statistics, signal processing, pattern recognition, econometrics, mathematical finance, weather forecasting, intelligent transport and trajectory forecasting, earthquake prediction, electroencephalography, control engineering, astronomy, communications engineering, and largely in any domain of applied science and engineering which involves temporal measurements.Time series analysis comprises methods for analyzing time series data in order to extract meaningful statistics and other characteristics of the data. Time series forecasting is the use of a model to predict future values based on previously observed values. While regression analysis is often employed in such a way as to test theories that the current values of one or more independent time series affect the current value of another time series, this type of analysis of time series is not called ""time series analysis"", which focuses on comparing values of a single time series or multiple dependent time series at different points in time.Time series data have a natural temporal ordering. This makes time series analysis distinct from cross-sectional studies, in which there is no natural ordering of the observations (e.g. explaining people's wages by reference to their respective education levels, where the individuals' data could be entered in any order). Time series analysis is also distinct from spatial data analysis where the observations typically relate to geographical locations (e.g. accounting for house prices by the location as well as the intrinsic characteristics of the houses). A stochastic model for a time series will generally reflect the fact that observations close together in time will be more closely related than observations further apart. In addition, time series models will often make use of the natural one-way ordering of time so that values for a given period will be expressed as deriving in some way from past values, rather than from future values (see time reversibility.)Time series analysis can be applied to real-valued, continuous data, discrete numeric data, or discrete symbolic data (i.e. sequences of characters, such as letters and words in the English language.).